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System requirements for SMC-D

You need to ensure that your system meets the system requirements to use SMC-D.

To use Shared Memory Communications - Direct Memory Access (SMC-D), the minimum software requirement is z/OS® Version 2 Release 2 with APARs OA48411 and PI45028 applied, and the minimum hardware requirement is IBM z13™ GA2 or later systems.

If you configure more than Start of change24End of change Peripheral Component Interconnect Express® (PCIe) devices, you must configure the IEASYSxx LFAREA parameter. Start of changeThe 24 PCIe devices include all z/OS Communications Server PCIe devices and other z/OS PCIe devices. End of changeIn z/OS Communications Server, you can configure the following PCIe devices:
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  • Internal shared memory (ISM) devices
For more information about specifying the IEASYSxx LFAREA parameter, see z/OS MVS Initialization and Tuning Guide.
Parent topic: System and network requirements for Shared Memory Communications
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